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Yin P, Zhou Z, Shi L, Xiang C, Ye L, Han M, Shi Z, Zhao Z, Li X. Stereocontrolled Construction of Spirooxindole-Containing 5,6,7,8-Tetrahydropyrrolo[1,2- a]pyridine via Michael/Friedel-Crafts Domino Reaction Promoted by Secondary Amine-Squaramide. Org Lett 2024; 26:2152-2157. [PMID: 38456394 DOI: 10.1021/acs.orglett.4c00073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2024]
Abstract
An asymmetric Michael/Friedel-Crafts cascade reaction with Morita-Baylis-Hillman (MBH) nitroallylic esters and 3-pyrrolyloxindoles has been developed for the stereoselective construction of spirooxindole-containing tetrahydroindolizines. A range of tetracyclic scaffolds possessing three consecutive chiral centers, including an all-carbon quaternary stereocenter, were generated in 53-85% isolated yields with high diastereoselectivities and enantiopurities (≥3:1 dr, 50-98% ee). A newly synthesized bifunctional secondary amine/squaramide organocatalyst was demonstrated to exhibit better stereochemical control than their tertiary analogues.
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Affiliation(s)
- Pengxuan Yin
- Key Laboratory of General Chemistry of the National Ethnic Affairs Commission, School of Chemistry and Environment, Southwest Minzu University, Chengdu 610041, China
| | - Zijie Zhou
- Key Laboratory of General Chemistry of the National Ethnic Affairs Commission, School of Chemistry and Environment, Southwest Minzu University, Chengdu 610041, China
| | - Lingsheng Shi
- Key Laboratory of General Chemistry of the National Ethnic Affairs Commission, School of Chemistry and Environment, Southwest Minzu University, Chengdu 610041, China
| | - Chengzhi Xiang
- Key Laboratory of General Chemistry of the National Ethnic Affairs Commission, School of Chemistry and Environment, Southwest Minzu University, Chengdu 610041, China
| | - Ling Ye
- Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Min Han
- Key Laboratory of General Chemistry of the National Ethnic Affairs Commission, School of Chemistry and Environment, Southwest Minzu University, Chengdu 610041, China
| | - Zhichuan Shi
- Key Laboratory of General Chemistry of the National Ethnic Affairs Commission, School of Chemistry and Environment, Southwest Minzu University, Chengdu 610041, China
| | - Zhigang Zhao
- Key Laboratory of General Chemistry of the National Ethnic Affairs Commission, School of Chemistry and Environment, Southwest Minzu University, Chengdu 610041, China
| | - Xuefeng Li
- Key Laboratory of General Chemistry of the National Ethnic Affairs Commission, School of Chemistry and Environment, Southwest Minzu University, Chengdu 610041, China
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2
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4-Alkylsubstituted 3-aryl-cycl[3.2.2]azine-1,2-dicarboxylic acids and their sodium salts as novel π-extended blue-green fluorophores: synthesis, spectroscopy, logD7.4 distribution coefficients and cytotoxicity. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2022.114390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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3
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Xuan J, Machicao PA, Haelsig KT, Maimone TJ. Chemical Investigations of Differentially Oxidized Polycylic Pyrroles from Bipolaris Fungi: Synthetic Entry Into the Bipolamine Alkaloids. Angew Chem Int Ed Engl 2022; 61:e202209457. [PMID: 35866193 PMCID: PMC9452474 DOI: 10.1002/anie.202209457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Indexed: 11/08/2022]
Abstract
indolizidine alkaloids of unusual biosynthetic origin have recently been characterized from several species of fungi within the Pleosporaceae family. Possessing distinct polycyclic architectures with two embedded electron-rich pyrroles as well as reported antibacterial activity against gram positive and negative pathogens, these natural products represent attractive targets for total synthesis. Herein we survey the differential functionalization of a chemically sensitive bispyrrole framework resulting in the preparation of multiple bipolamine alkaloids, work which sheds light on their innate chemical reactivity and potential biosynthetic relationships.
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Affiliation(s)
- Jun Xuan
- Department of Chemistry, University of California, Berkeley, 826 Latimer Hall, Berkeley, CA 94720, USA
| | - Paulo A Machicao
- Department of Chemistry, University of California, Berkeley, 826 Latimer Hall, Berkeley, CA 94720, USA
| | - Karl T Haelsig
- Department of Chemistry, University of California, Berkeley, 826 Latimer Hall, Berkeley, CA 94720, USA
| | - Thomas J Maimone
- Department of Chemistry, University of California, Berkeley, 826 Latimer Hall, Berkeley, CA 94720, USA
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4
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Xuan J, Machicao P, Haelsig K, Maimone T. Chemical Investigations of Differentially Oxidized Polycyclic Pyrroles from Bipolaris Fungi: Synthetic Entry Into the Bipolamine Alkaloids. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202209457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jun Xuan
- University of California Berkeley College of Chemistry Chemistry UNITED STATES
| | - Paulo Machicao
- University of California Berkeley College of Chemistry Chemistry UNITED STATES
| | - Karl Haelsig
- University of California Berkeley College of Chemistry Chemistry UNITED STATES
| | - Thomas Maimone
- University of California Berkeley Department of Chemistry 826 Latimer Hall 94720 Berkeley UNITED STATES
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5
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Jessen NI, Bertuzzi G, Bura M, Skipper ML, Jørgensen KA. Enantioselective Construction of the Cycl[3.2.2]azine Core via Organocatalytic [12 + 2] Cycloadditions. J Am Chem Soc 2021; 143:6140-6151. [PMID: 33872512 DOI: 10.1021/jacs.1c00499] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The first enantioselective [12 + 2] cycloaddition has been developed for the construction of a chiral cycl[3.2.2]azine core, a tricyclic moiety with a central ring-junction nitrogen atom, by an operationally simple one-step organocatalytic process. The reaction concept builds upon aminocatalytically generated 12π-components derived from 5H-benzo[a]pyrrolizine-3-carbaldehydes reacting with different electron-deficient 2π-components and affording the complex scaffold of benzo[a]cycl[3.2.2]azine (indolizino[3,4,5-ab]isoindole) with excellent enantio- and diastereoselectivity in good yields. The developed reaction is robust toward diverse substituent patterns and has been extended to different classes of electron-deficient 2π-components by minor variations in reaction setup. The obtained [12 + 2] cycloadducts are electron-deficient in nature, and their reaction with nucleophiles have been demonstrated. The enantioselective [12 + 2] cycloaddition with α,β-unsaturated aldehydes as the electron-deficient 2π-components relies upon an unconventional, simple aminocatalyst. In order to understand the high stereoselectivity of the [12 + 2] cycloaddition for this simple catalyst, combined experimental and computational investigations were performed. The investigations point to activation of both the 5H-benzo[a]pyrrolizine-3-carbaldehyde and the α,β-unsaturated aldehyde by the aminocatalyst and that the reaction proceeds by a stepwise cycloaddition, where especially the ring-closure is crucial for the stereochemical outcome. For other electron-deficient 2π-components, such as α,β-unsaturated ketoesters and nitroolefins, a more sterically demanding aminocatalyst has been applied and the corresponding [12 + 2] cycloadducts are obtained with excellent stereoselectivity. The [12 + 2] cycloaddition with vinyl sulfones afforded fully unsaturated systems, which display photoluminescence properties and for which quantum yields have been evaluated.
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Affiliation(s)
| | - Giulio Bertuzzi
- Department of Chemistry, Aarhus University, DK-8000 Aarhus C, Denmark
| | - Maksimilian Bura
- Department of Chemistry, Aarhus University, DK-8000 Aarhus C, Denmark
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6
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Xuan J, Haelsig KT, Sheremet M, Machicao PA, Maimone TJ. Evolution of a Synthetic Strategy for Complex Polypyrrole Alkaloids: Total Syntheses of Curvulamine and Curindolizine. J Am Chem Soc 2021; 143:2970-2983. [PMID: 33570388 DOI: 10.1021/jacs.0c13465] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Structurally unprecedented antibacterial alkaloids containing multiple electron-rich pyrrole units have recently been isolated from Curvularia sp. and Bipolaris maydis fungi. This article documents the evolution of a synthetic program aimed at accessing the flagship metabolites curvulamine and curindolizine which are presumably a dimer and trimer of a C10N biosynthetic building block, respectively. Starting with curvulamine, we detail several strategies to merge two simple, bioinspired fragments, which while ultimately unsuccessful, led us toward a pyrroloazepinone building block-based strategy and an improved synthesis of this 10π-aromatic heterocycle. A two-step annulation process was then designed to forge a conserved tetracyclic bis-pyrrole architecture and advanced into a variety of late-stage intermediates; unfortunately, however, a failed decarboxylation thwarted the total synthesis of curvulamine. By tailoring our annulation precursors, success was ultimately found through the use of a cyanohydrin nucleophile which enabled a 10-step total synthesis of curvulamine. Attempts were then made to realize a biomimetic coupling of curvulamine with an additional C10N fragment to arrive at curindolizine, the most complex family member. Although unproductive, we developed a 14-step total synthesis of this alkaloid through an abiotic coupling approach. Throughout this work, effort was made to harness and exploit the innate reactivity of the pyrrole nucleus, an objective which has uncovered many interesting findings in the chemistry of this reactive heterocycle.
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Affiliation(s)
| | | | | | | | - Thomas J Maimone
- Department of Chemistry, University of California, Berkeley, 826 Latimer Hall, Berkeley, California 94720, United States
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7
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Kallweit I, Laue M, Schneider C. Brønsted-Acid-Catalyzed (3+2)-Cycloannulation of In-Situ-Generated 3-Methide-3H-pyrroles: Asymmetric Synthesis of Cyclopenta[b]pyrroles. Org Lett 2020; 22:9065-9070. [DOI: 10.1021/acs.orglett.0c03452] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Isa Kallweit
- Institut für Organische Chemie, Universität Leipzig, Johannisallee 29, 04103 Leipzig, Germany
| | - Michael Laue
- Institut für Organische Chemie, Universität Leipzig, Johannisallee 29, 04103 Leipzig, Germany
| | - Christoph Schneider
- Institut für Organische Chemie, Universität Leipzig, Johannisallee 29, 04103 Leipzig, Germany
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9
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Zhang S, Greenhalgh MD, Slawin AMZ, Smith AD. Tandem sequential catalytic enantioselective synthesis of highly-functionalised tetrahydroindolizine derivatives. Chem Sci 2020; 11:3885-3892. [PMID: 34122857 PMCID: PMC8152628 DOI: 10.1039/d0sc00432d] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
An isothiourea-catalysed enantioselective synthesis of novel tetrahydroindolizine derivatives is reported through a one-pot tandem sequential process. The application of 2-(pyrrol-1-yl)acetic acid in combination with either a trifluoromethyl enone or an α-keto-β,γ-unsaturated ester in an enantioselective Michael addition–lactonisation process, followed by in situ ring-opening and cyclisation, led to a range of 24 tetrahydroindolizine derivatives containing three stereocentres in up to >95 : 5 dr and >99 : 1 er. The isothiourea-catalysed enantioselective synthesis of tetrahydroindolizine derivatives containing three stereocentres is reported through a one-pot tandem sequential process.![]()
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Affiliation(s)
- Shuyue Zhang
- EaStCHEM, School of Chemistry, University of St Andrews North Haugh St Andrews KY16 9ST UK
| | - Mark D Greenhalgh
- EaStCHEM, School of Chemistry, University of St Andrews North Haugh St Andrews KY16 9ST UK
| | - Alexandra M Z Slawin
- EaStCHEM, School of Chemistry, University of St Andrews North Haugh St Andrews KY16 9ST UK
| | - Andrew D Smith
- EaStCHEM, School of Chemistry, University of St Andrews North Haugh St Andrews KY16 9ST UK
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10
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Sirindil F, Golling S, Lamare R, Weibel JM, Pale P, Blanc A. Synthesis of Indolizine and Pyrrolo[1,2-a]azepine Derivatives via a Gold(I)-Catalyzed Three-Step Cascade. Org Lett 2019; 21:8997-9000. [DOI: 10.1021/acs.orglett.9b03402] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Fatih Sirindil
- Laboratoire de Synthèse, Réactivité Organiques et Catalyse, Institut de Chimie, UMR 7177
- CNRS, Université de Strasbourg, 4 rue Blaise Pascal, 67070 Strasbourg, France
| | - Stéphane Golling
- Laboratoire de Synthèse, Réactivité Organiques et Catalyse, Institut de Chimie, UMR 7177
- CNRS, Université de Strasbourg, 4 rue Blaise Pascal, 67070 Strasbourg, France
| | - Raphaël Lamare
- Laboratoire de Synthèse, Réactivité Organiques et Catalyse, Institut de Chimie, UMR 7177
- CNRS, Université de Strasbourg, 4 rue Blaise Pascal, 67070 Strasbourg, France
| | - Jean-Marc Weibel
- Laboratoire de Synthèse, Réactivité Organiques et Catalyse, Institut de Chimie, UMR 7177
- CNRS, Université de Strasbourg, 4 rue Blaise Pascal, 67070 Strasbourg, France
| | - Patrick Pale
- Laboratoire de Synthèse, Réactivité Organiques et Catalyse, Institut de Chimie, UMR 7177
- CNRS, Université de Strasbourg, 4 rue Blaise Pascal, 67070 Strasbourg, France
| | - Aurélien Blanc
- Laboratoire de Synthèse, Réactivité Organiques et Catalyse, Institut de Chimie, UMR 7177
- CNRS, Université de Strasbourg, 4 rue Blaise Pascal, 67070 Strasbourg, France
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11
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Kallweit I, Schneider C. Brønsted Acid Catalyzed [6 + 2]-Cycloaddition of 2-Vinylindoles with in Situ Generated 2-Methide-2H-pyrroles: Direct, Catalytic, and Enantioselective Synthesis of 2,3-Dihydro-1H-pyrrolizines. Org Lett 2019; 21:519-523. [DOI: 10.1021/acs.orglett.8b03833] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Isa Kallweit
- Institut für Organische Chemie, Universität Leipzig, Johannisallee 29, 04103 Leipzig, Germany
| | - Christoph Schneider
- Institut für Organische Chemie, Universität Leipzig, Johannisallee 29, 04103 Leipzig, Germany
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12
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Homer JA, Sperry J. Biomimetic synthesis of the bisindole framework present in sciodole, an alkaloid fromTricholoma sciodes. Org Biomol Chem 2018; 16:6882-6885. [DOI: 10.1039/c8ob02142b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The unique bisindole bond present in the alkaloid sciodole can be forged by amination of an azafulvene, validating a biosynthetic hypothesis.
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Affiliation(s)
- Joshua A. Homer
- School of Chemical Sciences
- 23 Symonds Street
- University of Auckland
- Auckland
- New Zealand
| | - Jonathan Sperry
- School of Chemical Sciences
- 23 Symonds Street
- University of Auckland
- Auckland
- New Zealand
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13
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Scalacci N, Black GW, Mattedi G, Brown NL, Turner NJ, Castagnolo D. Unveiling the Biocatalytic Aromatizing Activity of Monoamine Oxidases MAO-N and 6-HDNO: Development of Chemoenzymatic Cascades for the Synthesis of Pyrroles. ACS Catal 2017. [DOI: 10.1021/acscatal.6b03081] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Nicoló Scalacci
- Institute
of Pharmaceutical Science, King’s College London, 150 Stamford Street, SE1 9NH London, United Kingdom
- Department
of Applied Sciences, Northumbria University, Ellison Place, NE1 8ST Newcastle upon Tyne, United Kingdom
| | - Gary W. Black
- Department
of Applied Sciences, Northumbria University, Ellison Place, NE1 8ST Newcastle upon Tyne, United Kingdom
| | - Giulio Mattedi
- Institute
of Pharmaceutical Science, King’s College London, 150 Stamford Street, SE1 9NH London, United Kingdom
| | - Nicola L. Brown
- Department
of Applied Sciences, Northumbria University, Ellison Place, NE1 8ST Newcastle upon Tyne, United Kingdom
| | - Nicholas J. Turner
- School
of Chemistry, Manchester Institute of Biotechnology, University of Manchester, 131 Princess Street, M1 7DN Manchester, United Kingdom
| | - Daniele Castagnolo
- Institute
of Pharmaceutical Science, King’s College London, 150 Stamford Street, SE1 9NH London, United Kingdom
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15
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Parida BB, Das PP, Niocel M, Cha JK. C-Acylation of Cyclopropanols: Preparation of Functionalized 1,4-Diketones. Org Lett 2013; 15:1780-3. [DOI: 10.1021/ol400666x] [Citation(s) in RCA: 86] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Bibhuti Bhusan Parida
- Department of Chemistry, Wayne State University, 5101 Cass Avenue, Detroit, Michigan 48202, United States
| | - Pragna Pratic Das
- Department of Chemistry, Wayne State University, 5101 Cass Avenue, Detroit, Michigan 48202, United States
| | - Mathilde Niocel
- Department of Chemistry, Wayne State University, 5101 Cass Avenue, Detroit, Michigan 48202, United States
| | - Jin Kun Cha
- Department of Chemistry, Wayne State University, 5101 Cass Avenue, Detroit, Michigan 48202, United States
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16
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Five-Membered Ring Systems. ACTA ACUST UNITED AC 2011. [DOI: 10.1016/s0959-6380(11)22006-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
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17
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Snyder SA, ElSohly AM, Kontes F. Synthetic and Theoretical Investigations of Myrmicarin Biosynthesis. Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.201005825] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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18
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Snyder SA, ElSohly AM, Kontes F. Synthetic and Theoretical Investigations of Myrmicarin Biosynthesis. Angew Chem Int Ed Engl 2010; 49:9693-8. [DOI: 10.1002/anie.201005825] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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19
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Ondrus AE, Kaniskan HÜ, Movassaghi M. Dimerization of functional pyrroloindolizines for the synthesis of complex myrmicarin alkaloids. Tetrahedron 2010; 66:4784-4795. [PMID: 20798891 DOI: 10.1016/j.tet.2010.04.006] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The union of functionalized pyrroloindolizines for the synthesis of heterodimeric products relevant to myrmicarin alkaloids is described. Design and synthesis of tricyclic substrates and new methods for their union enable the investigation of late-stage cyclopentannulation strategies. The rapid assembly of dimeric structures using unique modes of pyrroloindolizine reactivity presents a concise approach to the dimeric myrmicarins and relevant derivatives.
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Affiliation(s)
- Alison E Ondrus
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
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20
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Yamakoshi H, Shibuya M, Tomizawa M, Osada Y, Kanoh N, Iwabuchi Y. Total Synthesis and Determination of the Absolute Configuration of (−)-Idesolide. Org Lett 2010; 12:980-3. [DOI: 10.1021/ol9029676] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hiroyuki Yamakoshi
- Department of Organic Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Aobayama, Sendai 980-8578, Japan
| | - Masatoshi Shibuya
- Department of Organic Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Aobayama, Sendai 980-8578, Japan
| | - Masaki Tomizawa
- Department of Organic Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Aobayama, Sendai 980-8578, Japan
| | - Yuji Osada
- Department of Organic Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Aobayama, Sendai 980-8578, Japan
| | - Naoki Kanoh
- Department of Organic Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Aobayama, Sendai 980-8578, Japan
| | - Yoshiharu Iwabuchi
- Department of Organic Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Aobayama, Sendai 980-8578, Japan
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21
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Liu Y, Hu HY, Zhang Y, Hu HW, Xu JH. Synthesis of 1,2-annulated and 1,2-unsubstituted pyrrolo[2,1,5-de]quinolizin-5-ones (cycl[3.3.2]azin-5-ones) via [3+2] cycloadditions of 1-oxoquinolizinium ylides with cyclic alkenes. Org Biomol Chem 2010; 8:4921-6. [DOI: 10.1039/c0ob00299b] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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